From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: haveblue@us.ibm.com, linux-mm@kvack.org, pavel@suse.cz,
kravetz@us.ibm.com
Subject: Re: [PATCH] [RFC] for_each_page_in_zone [1/1]
Date: Sat, 25 Feb 2006 10:31:13 +0900 [thread overview]
Message-ID: <20060225103113.644191cb.kamezawa.hiroyu@jp.fujitsu.com> (raw)
In-Reply-To: <20060225102443.22b5727e.kamezawa.hiroyu@jp.fujitsu.com>
On Sat, 25 Feb 2006 10:24:43 +0900
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> wrote:
> Oh......maybe this code is ok?
> --
> do {
> pfn = next_valid_pfn(pfn, zone->zone_start_pfn + zone->zone->spanned_pages);
> }while(page_zone(pfn_to_page(pfn)) !-= zone);
> --
> I think powerpc uses SPARSEMEM when NUMA, so pfn is efficientlly skipped.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Ignore above (><
This code doesn't change current inefficiency...so more optimization (with some assumption or
with some helper information) can be done in future..
--Kame
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prev parent reply other threads:[~2006-02-25 1:31 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-24 8:15 KAMEZAWA Hiroyuki
2006-02-24 10:52 ` Pavel Machek
2006-02-24 11:59 ` KAMEZAWA Hiroyuki
2006-02-24 15:43 ` Dave Hansen
2006-02-25 1:24 ` KAMEZAWA Hiroyuki
2006-02-25 1:31 ` KAMEZAWA Hiroyuki [this message]
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